Many changes:

- Introduced GTKGetWindow() which returns all GdkWindows associated with the
  given wxWindow
- Renamed IsOwnGtkWindow() to GTKIsOwnWindow() to avoid confusion with the old
  virtual function (the new one is non-virtual and is implemented in terms of
  GTKGetWindow())
- Refactored/simplified event handlers code in gtk/window.cpp
- Fixed some header guards names (__GTKFOO__ -> _WX_GTK_FOO_H_)
- Added GTKUpdateCursor() which sets the current cursor for all windows
  returned by GTKGetWindow()
- Factored out code from many different classes in wxControl::OnInternalIdle()
  which now updates the cursor, checks for internal focus and sends update UI
  events


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@40815 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/control.cpp

@@ -366,4 +366,19 @@ wxControl::GetDefaultAttributesFromGTKWidget(wxGtkWidgetNewFromAdj_t widget_new,
     return attr;
 }
 
+// ----------------------------------------------------------------------------
+// idle handling
+// ----------------------------------------------------------------------------
+
+void wxControl::OnInternalIdle()
+{
+    if ( GtkShowFromOnIdle() )
+        return;
+    
+    GTKUpdateCursor();
+
+    if ( wxUpdateUIEvent::CanUpdate(this) )
+        UpdateWindowUI(wxUPDATE_UI_FROMIDLE);
+}
+
 #endif // wxUSE_CONTROLS